I have no opinion on these ESCs. They have no brand name, all those words in the name are specifications but give me no clue as to who made it. But after converting the price to my local currency, I know I can find branded ones here for a similar amount (slightly more here). However I know who made those ones and I can get data on them.
So I will not say yes or no to these ESCs.
The only place I see those ESCās is on Aliexpress (~$7 each) or eBay so no telling what you are getting. The main reason for using BLHeli_S ESCās is if they can be flashed with Bluejay firmware which offers several advantages. No clue if these are capable of that. But, if you end up having to use PWM anyway these may be a better choice than anything else you have posted about.
These are Cyclone 30A BLHeli_s Dshot600 opto ESCsā¦ But why these are so cheap then? Even cheaper than the previous ESC!?
What do you want to read?
No real datasheet or manual available.
Missleading product information as it only has max 25A continuous current capability
ā¦
If you want to get cheap things it is ok, but you will not get good recommandations for these things here.
You have to make your own decision, of course based on the circumstances that apply to you. Price seems to play a key role for you here.
The other forum membersā priorities seem to be largely different, here quality is more important, which cannot be denied for a flying object that also poses certain risks.
You write that you like to experiment. Well then try it out. You are worried that extended cables could break. If they are made properly they wonāt break. But a poorly installed ESC in the motor arm is an increased risk. You categorically reject 4in1 ESC, but for a relatively small quad this is actually the cheapest and best quality compromise.
Use this (as previously recommended).
Itās about the cost of 5 of the cheap/questionable ones you keep linking, and it is a reasonably reputable brand that is sold in your country. Even better, itās using the latest firmware to hit the market. In fact, as I understand it, Skystars were actually the first to bring AM32 to market, period.
Keep working on your solder skills, which will make extending a few motor wires a complete non-issue.
Okā¦
I will use some 4 in 1 ESC and letās see what happensā¦
So,
The ESC you recommend, has 60A load capacity! But my individual motor never requires over 30A each? There are even some of the 4 in 1 ESCs I see which have 50A, 45A ratings, shouldnāt I use them? Or is 60A necessary?
Also, one of my biggest questions with 4 in 1 ESCs is that, suppose if even one, just one SMD of that 4 in 1 ESC stopped working, The whole ESC is lost!? Then I will have to purchase a whole new ESC again!? Costing 5000 INR!? While in arm mount ESCs, only a single ESC can be replaced.
(product link deleted - incorrect information on the site)
Itās ok to have an ESC that exceeds the expected amp draw of your system, and itās often preferable to have some margin there, anyway. At this price point, I donāt think you can do much better.
Your second concern is valid. A single ESC is cheaper and easier to replace. I havenāt yet seen one of those mentioned here that I could recommend using, and the price point of the 4in1 above seems to be the sweet spot between replacement cost, ease of use, and reasonable reliability.
This new ESC which you shared, does it has a telemetry support? (No details of telemetry given in web page)
And by max, I can afford this one:
And yes, this time, thatās a good oneā¦
(Contentmentā¦)
Finally Final? KM45 Turbo2020 with BLHeli_32 and ESC Telemetry support!
I found another site with the KM50 showing the pinout, and it did not include a telemetry pin. It also showed that it runs BlHeli_32 (just like the 45A one you just linked).
BlHeli_32 firmware is no longer available (the company shut down), and it cannot be updated. Depending on the version, it has a critical bug that could be dangerous.
So I take back my 50A 4in1 recommendation. BlHeli_32 was excellent while it lasted, but the lingering bug that was introduced somewhat shortly before the company pulled it makes it hard to endorse.
BlHeli_S was open-sourced and ESCs that use it can be flashed with Bluejay as an alternative that is currently supported and reasonably full featured.
AM32 is the newest firmware to the market and shows a lot of promise.
So we should be looking for ESCs that run BlHeli_S or AM32 (like the 60A ESC that has been linked now twice).
Note - you can still use BlHeli_32, and it does work pretty well. I just have a hard time actually recommending it.
What actually is the bug? How can a simple device like ESC can have a critical bug? And is that bug so common that the ESC (Turbo 2020) which I linked will have that bug and it will malfunction every time when I power on the quad?
So, ultimately, should I continue with our BLheli 32 Turbo_2020 or search for another?
Motors and frame gets ordered,
Remaining ESCsā¦
Thereās a bug where the motors could spin to full throttle immediately when you plug the battery in. That could cut a finger even with little 50mm props, and itās downright terrifying on larger frames. It is somewhat uncommon, but reports happened often enough to warrant mention of it. There are additional reports of motor overheats on the later versions as well.
OMG!
Dangerous on my 45 cm (diagonal) medium sized frame!!!
Okā¦
Actually I do not know any ESC companies other than Emax, or skystarsā¦
So please recommend anyā¦
Because this bug, is really dangerous!
Should I prefer seeing more on quadkart?
Again, BlHeli_S and AM32 are the way to go. And I have referred to the Skystars 60A ESC multiple times that is only marginally more expensive than the one you recently suggested.
But if BLheli 32 is so danger firmware, then why the ESCs with this firmware are not banned!? People like me who do not know about this bug will buy this ESC and then SWOOSH! Drone skyrocketed! Reaching 500m height and then crashed bitterly! Why these ESCs arenāt dustbinned by The people!
Even after searching many times, I not found anything except BL heli 32!!
So yes ā¦
I will try to buy the AM32 one which you recommendā¦
Does this support ESC Telemetry then? Because nothing is written in website!?
At this price range we would surely expect ESC Telemetry from this !
But listen!, in Pixhawk 6C Mini, we have PWM Headers for ESCs , but this 4 in 1 ESC has a different type of connector!? Where it will get connected in Pixhawk 6C Mini? And what if the cable length of this ESC becomes short to reach Pixhawk!? !!
https://skystars-rc.com/product/ko45a-3-6s-blheli_s-dshot600-4-in-1-esc/
Why I am not able to order directly from the skystars website!?
These Skystar ESCs are also among the models at the lower end of the price range. You shouldnāt have too high expectations. Iām just missing decent documentation like a manual and pinouts on the manufacturerās website for downloading.
If you look closely at the few available, you can see that these modules have a TX cable and a current sensor cable, so at least rudimentary telemetry.
You can set the cable length and connection to the FC yourself, as the ESCs have no permanently connected cables or plugs, just solder pads.
We canāt say whether you can order directly from the manufacturer, as we donāt know the regulations in your country.
Is speedybee a good company for ESCs? Are these ESCs good?
These have BLheli_s and are 60A and are in my āaffordableā segmentā¦
(Hope this will be fineā¦ I am quite tired of searching ESCsā¦)
But you didnāt tell how are 4 in 1 ESCs get connected to Pixhawk 6C Mini? As Pixhawk 6C Mini has only PWM Headers? Whereas 4 in 1 has a different type of connector and cable?
The documentation explains how to connect those:
GND to GND
out 1 to ESC1
out 2 to ESC2
out 3 to ESC3
out 4 to ESC4
analog voltage monitoring input to ESC voltage monitoring output
analog current monitoring input to ESC current monitoring output
7 wires in total.